package jiekou;

public class Test {
    public static void main(String [] args){
//      Daughter d=new Daughter();
//      Mother d2=new Daughter();
//      d.sing();
//      d2.sing();
        Daughter a=new Daughter();
      Father a1=new Daughter();
      a.playFootball();
      a1.playFootball();
    }
}
